Brake for motor-vehicles.



No. 688,|08. Patented Dec. 3, l90l.

W. A. MAYBACH.

BRAKE FR MDTUR VEHICLES.

(Application filed Mar. 28, 1901.)

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,is preferably made of spring material.

ITED STATES PArnNr Intron.

i IrYILHELM A. MAYBACH, OF CANNSTADT, GERMANY, ASSIGNOR TO DAIMLERMANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

BRAKE FOR MOTO R--i/El-iloLEs;l

SPECIFICATION forming part 0f Letters Patent No. $88,108, dated DecemberL3, 190.1. Application filed March 28) 1901. Serial No. 53,340. (Nomodel.)

hicles, of which the following is a specification.

The object of niyinvention is to provide a brake for motor-vehicles thatwill operate equally upon a wheel turning in either direction. Thisobject I attain in the following' manner, reference being had to theaccompanying drawings, in which- Figure l is a vertical sectional viewillustrating my brake mechanism. Fig. 2 is a side view of the brakemechanism with the Wheel in dotted lines, and Fig. 3 is a view of amodiiication.

In brakes for motor-vehicles heretofore used the majority of theband-brakes are so constructed as to operate when the vehicle is turningin one direction7 and if the wheel is turning in the opposite directionthe brakeband will not operate. Y

A is the wheel of a motor-vehicle, for instance, and can be of any type.This wheel is mounted on the axle B. Secured to the `Wheel is adeep-hanged sprocket-wheel A', in the present instance having teeth d,with which the drive-chain engages.

C is a carrier having four arms c in the present instance, withcarrying-rollers c at their extremities. This carrier is mounted on theaxle B, as clearly shown in Fig. l.

Supported by the carrier C is the brakering D. This brake-ring is splitat d and Attached to this brake-ring at e is a link E, which in turn isattached to the frame of the vehicle at ef. Thus the brake-ringisprevented from turningin either direction. The link is so hung, however,that the ring will have free motion to accommodate itself to the axle.The link E has a pivot-pin e, and on one side of the pivot-pin is acollar and on the other side a washer and nut, as clearly shown in Fig.l. Thus the brake-ring is held centrally by the arms of the carrier Cand is prevented from turning with the wheel in either direction by thelink E.

Secured to the axle B is a bracket F, and having its bearing in thebracket is a rockshaft- G. On this rock-shaft is an arm g, connected bya rod g to the brake-operating lever of the vehicle. Also on therock-shaft G is a short arm g2, connected to the ends el of the ring Dby links 7L h' 7L', so that if the operating-rod g is moved in thedirection of the arrow, Fig. 2, it will cause the shaft Gto rock in itsbearings and force the ends d of the brake-ring apart, and consequentlythe brakering will be forced into friotional contact with the flange Aof the wheel A. By this arrangement the brake can be applied whether thevehicle is going forward or backward. In one case the link is undertension and in the other case it is under compression. Vhen the springbrake-ring is released from the control of the lever G, it will be drawnaway from the iiange A of the Wheel A and will be held centrally clearof the flange by the arms of the carrier C. Thus friction and noise areavoided.`

The ends of the brakering D lnay be formed as shown in Fig. 3. Theinclined surfaces d2 are spaced to allow a finger II hung to the arm g2of the lever G to be forced into the space between the inclined edges D?of the ring D and force the edges apart.

In the drawings I have shown a wheel having a flanged sprocket-wheelattached thereto; but it will be understood that the plain flange may beused and any form of Wheel may be used without departing from myinvention.

I claim as my inventionl. The combination in a vehicle-brake, of awheel, an axle therefor, a split brake-ring constructed to be forcedinto frictional contact with the interior surface of said wheel, acarrier for the brake -ring supported on the axle, a bracket alsocarried by the axle, a rock-shaft supported by the bracket, two armsfixed to said shaft, a toggle connecting one of said arms to the twoends of the brakering, and an operating-lever connected to the other armfor turning the rock-shaft, substantially as described.

2. The combination in a brake-ring for vehicles, of a wheel, abrake-ring arranged to be forced into frictional contact therewith, a

IOO

link connecting the brake-ring to the body of the vehicle, a bracket onthe axle, a rockshaft, operating means connected to the said shaft, andlinks forming a toggle connecting the shaft with the brake-ring so thaton moving the rock-shaft the brake-ring will be eX- panded andcontracted, substantially as described.

3. The combination in a vehicle-brake, of an axle, a wheel thereon, aiiange on the wheel, a carrier on the axle, arms on the carrier,friction-wheels on said arms, a spring brake-ring mounted on the Wheelsof the carrier and connected to the vehicle-body, and means for forcingthe brake-ring in contact with the flange of the wheel, substantially asdescribed.

ocanos a bracket on the axle, a lever connection, and

a link connecting one arm of the lever to the ends of the brake-ring,the other arrn of the lever being connected to the operating means,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

WILHELM A. MAYBACH.

Vitnesses:

WM. HAHN, H. E. REIGHARDT.

